Utility jack



Patented Sept. 7, 1926.

ouirsn mm PATENT err-ice." f

EMMONS KERR, 011 BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-HAIJETO GEORGE .M. vHARRIS, OF BELMONT, MASSACHUSETTS.

UTILITY ACK.

Application ijled November 17, 1924; Sei'ial'N'o.'750,333.

My invention relates to jacks and more particularly to jacks adapted to use with motor vehicles and the like, and in order to illustrate its operation, I have shown it as applied to automobiles and-similar vehicles. A leading ob ect of my invention is to obviate the inconvenience and loss of time resulting from the breaking of springs on reqnires buta negligible expenditure oftime,

whereupon the spring functions normally until the 'car reaches its destination, or for sue-h additional time "as may elapse before it is convenient to effect a permanent re- A further object of my invention is to provide a support for the various parts oi an automobile during installation and repair in theshop, "a special advantage arising "from the ease with which the car may be moved from one spot to .another, while such work is being done. I

To the accomplishment of the recited-ob j'eots and others coordinate therewith, the preferred embodiment of my invention -resides in the constructionand arrangement of parts hereinafter described illustrated in the ac-ompanying drawings in which Fig. 1 shows a side-elevation of a frame and cantilever spring -with an end elevation of'the device in adjusted position.

Fig. 2 is a detail of the same showing a side elevation of the device 'in adjusted position.

Fig. 3 =is a detail of "the same taken at another an'gle.

Fig. dis a perspective 'VleW-O TEthGUPPGI member and clamp.

Fig. 5 is a side elevation of the device in adjusted positions'howing'its operation with a semi-ellipticalspring hung from *the side of a frame.

Fig. 6 is a side elevation of a frame'and semi-elliptical spring of the ordinary type as hung beneath the frame with an end elevation of 'the device in adjusted position.

Fig. 7 is a sideelevation-o'f the deviee in adjusted positioii with a spring of the pr evai l ing type lined up with the frame.

Fig. 8 isa side elevation otthe'device as used with a Ford spring and axle.

- Fig. 9 is an end elevation of the device as supporting the engine upon the axle of a Ford car, the spring being removed.

Fig. 10 is'a'side elevation of the "device as used tor the-sainepurpose.

The embodiment of my invention illustrated in the drawings comprises substantially the following'elementsi an upper member 1; two threaded intermediate members '5, 5;; nuts 6, 6, 7, and 8 adaptedto engage the same; a lower 1neniber2, ahanger 3 coacting with 'the sanie; and a;.c"la1np 4 provided with the slots 17, ISadapted to coact with either the upper or "lower insinber'.

The upper member 1 hasa recess a, adapted toreceiveaspring-or frame, a set screw 12 engaging said member by means of :the threaded hole 9, an-d-a-slot l l. Said -nien1- ber is also provided w'ith bosses 12 12-adapted torotatablyengage eyeletsltl integral with the intermediate members 5, 5 said engagementbe'ing perfeetedby' the'use'otthe'avashers 15', 1'5"and"the cotter ,p'ins -14-,and a recess 0 upon its lower side.

The lower =1nember "2 "is perforated by the holes 13 adapted for slidable"engagement with the intermediate members '5. 5 [The nuts 6, 6, 7, and 8, by their threaded engagement with said members may be raised or lowered by suitable means- {for the purposes hereinafter-shown. The lower member has a recess =1).

In Fig. 2, s is a crosslsection of a spring of the cantilever type hung from the side of the frame has shown-in li igql,

In Fig. 3, 2', Z, is, show in dotted lines the normal ,position of the s'haclile with the shackle bolts 2' and '70 "intact. Z in'Figs. 1 and *3 shows the shaclilehanging do wn, the bolt '70 being brokenaway-fromflthe end of the spring 8. 'Fig. 2-shows the-upper member 1 with its recess-c iidingthespring s. The clamp 4: is positioned with its slots 17 and I8 contacting with the intermediate members 5, 5 Bytightening thenuts 6, 6 upwardthe olainp is-inade tO'eO-Operate-With the-upper member lin firmly'binding-tlie W g"inpossition. The/lower member El is provided with an offset 19 integral therewith. The hanger 3 is provided with a hole 20 by which it is brought into slidable connection with said offset and a slot 21 by which it engages the frame it. therebyeifecting the suspension of the entire device from the frame as a fixed point. By tightening the nut 8 downward and leveling with the nut 7 the spring 8 is'foreed upward to its normal position. It will be obvious that with the members so positioned a repair of the shackle bolts can readily be effected in the shop. Furthermore, if the. accident occurs on the road, my-device, restoring the identical distance between the frame and springs as whensaid shackle bolts were intact, is a perfect substitute for the same, while the jack, when positioned near the end of the .spring, enables the full resiliency of said spring to be maintained so long as it may be desired to use the car, before halting fora repair. In a word, the expenditure of a few minutes of time accomplishes the same result as it new shackle bolts hadbeen fitted,

In Fig. 7 7 represents a cross section of a frame resting in the recess a of the upper member 1, g, a cross section of a semi-elliptical spring in alignment with the frame. The slot 11 serves to lock the frame so as to check the tendency of the upper member to roll along said frame, whenever the boss 12 and the set screw .70 chance to get out of alignment. The lower member 2 is placed in engagement with the intermediate membersreversed so that the recess Z) rides upon said spring. The clamp 4: co-operating with the lower member 2 by the same positioning as shown in Fig. 2, serving to protect the spring from side vibration due to going over the road. By tightening the nuts 6, 6,

and leveling with the nuts 7 and 8, the spring is forced downward, thereby restoring its normal'distance from'the frame.

5 shows aspring g of the semi-elliptical type hung from the side of the frame h. Said spring is positioned by means shown in Figs. 2 and 7. The frame it rests upon the ofiset 19. By tightening the nut 8 upward and leveling with the nut 7 the spring 9 is pulled downward to the adjusted position shown in said Fig. 5 restoring the normal positioning of said spring in relation to thesaid frame. I

The breaking of the leaves of a spring on the road has heretofore caused difliculties as unsurmountableas those hereinbefore shown inconnection with shackle bolts, there being no known means of supporting the spring save by the use of a block which totally destroyed the resiliency of said spring. In Fig. 6 the spring is broken at m, The upper member lengages the frame it as shown in Fig. 7, and theleaves of the spring 9 clamped firmly by lower member 2 and clamp 41; as shown in Fig. 2 are enabled to function normally for any desirable time, and my device operates with similar effectiveness, when the center bolt n is broken or any part of the spring is broken.

Furthermore my device may serve as a bracket forthe support of the various parts of a car. Figs; 9 and 10 show the engineer a Ford car 0 supported by the offset, the spring 2 being shown as removed.

F ig. 8 shows the operation of my invention on the rear spring of a Ford car. The

spring y is fixed in the recess a ofthe upper member 1 by means of the set screw p. The lower member 2 engages the intermediate member in a reversed position whereby the recess Z) rides upon the axle w. The clamp d is positioned with its recess 2 engaging the lower part of the axle to check side vibration as hereinbefore shown. The nuts 6, 6 are then screwed downward and by leveling with the nuts 7 and 8 the spring is forced upward. to the adjusted position shown, thereby restoring the normal positioning of the spring in relation to the said frame.-

, From the foregoing it will be noted that by the provision of the means shown and described, ajacking device is provided which in a manner analogous to the operations specifically shown is adapted to many other equally advantageous results. By its use the mechanic is enabled to line the front end of rear spring and ream bushing through hole in splash pan saving time and labor of removingmuifler and dropping spring. Its use as bracket is invaluable during installation and repair, and as has been shown, it may be employed for the various uses for which a clamp is desired. In a word, its efficiency is limited only byv the emergencies that may arise.

IVhilethe disclosures hereinbefore shown are considered to exemplify preferable embodiments of the invention, it is to be understood that it is not the intention to be limited necessarily thereto in interpretation of p the claims, as modifications and adaptations within the limits of the claims can be made without departing from the nature and spir- -it of the invention.

So far as I am aware, I am the first in the art to produce the concrete unitary structure herein described and claimed, and my claims to the herein described features are therefore to be interpreted with corresponding scope.

Iclaim 1. A device of the. character described comprising an upper'member, two. intermediate members pivotably engaging the 2. A device of the character described comprising an upper member recessed to receive a spring, means for fixing the same in firm engagement with said upper'member, a

pair of threaded bolts, a lower member slidably engaging said threaded bolts, said'lower member being provided with a recess, and means for forcing the lower member to a predetermined point on said threaded bolts.

3. A device of the character specified, comprising an upper member provided with a recess, a set screw, a slot, and two bosses, a pair of threaded intermediate members, PlOVlClQCl with eyelets adapted for rotatable ber, a pair of intermediate members, and means for forcing the lower member to a predetermined distance from the upper member, said lower member being provided with an offset integral therewith.

5. A device of the character described CODIPIlSIDg an upper nembena clamp cooperating with the same so as to bind a spring 8, in the recess 0, a pair of threaded intermediate members, a lower member provided with an offset, said lower member slid.- ably engaging the intermediate members in a reversed position, a hanger slidably en gaging said offset, said hanger being provide'd with slot a'daptedto effect an engagement with a frame whereby the device is suspended from said frame and means for for"- ing' said upper member upward.

6. In combination, an upper member provided with a recess, a clamp co-operating with the same so as to hold a spring a in engagement, two intermediate members, a lower member, a hanger adapted to engage a frame and means for forcing apart said upper and lower members.

7. A device of the character described comprising an upper member provided with a recess adapted to engagement with a frame, means for locking the frame in said recess, two intermediate members, a lower member slidably engaging said intermediate members provided with a recess Z) adapted to ride in engagement with said recess, a spring 9 of the usual type hung in align ment with said frame, and means for forcing apart said upper and lower members.

8. A device of the character specified comprising an upper member with a recess adapted to engage a spring, means for locking said member to said spring, a pair of threaded intermediate members, a lower member having a recess adapted to ride an axle w, nutsadapted to b'e screwed by suitable mans so .as to force said axleapart, and a clamp adapted to avoit vibration in going over the road.

9. A device of the character described having an upper member with a recess adapted. to ride a cantilever spring offset from a frame a )air of threaded intermediateme nbers, a clamp slidably'engaging said intermediate members, means for locking said upper member and'clamp so as to firmly engage the spring, a lower member provided with an offset, ahanger slidably engaging said offset,andprovided with a slot adapted for engagement with a frame,-

andmeans for forcing the springupward to its normal position in relation tothe frame.

10. A device of the character specified having an upper member with anuppe-r recess a having'a slotll-ion one side, a set.

screw 9 engaging said upper member by the threaded holep and a lower recess 0, said frame engaging the recess in said lower member, two threaded intermediate members, a lower member having. a recess adapted to ride aspring and an integraloifset adapted to serve as a supporting bracket, a hanger adapted for slid-able engagement with said offset so as to vco-operate with said lower member, a clamp member adapted to co-operate with either lower or-upper member at the will of the operator and a plurality of nuts adaptedto co-operatewitli'the intermediate membersso as to force apart the upper and lower members. a

11. A device of the character described comprising an upper member 1 with a recess a adapted to engage a spring y, means for locking said memberto said spring, a pair of threaded intermediate members,

lower member 2 having a recessb adapted to ride an axle w and means for forcing said spring and axle apart.

12. A device of the character described comprising an upper member 1 with a set screw p in threaded engagement therewith, and having a recess a adapted to hold a frame it in engagement by means of said set screw, and provided with a slot 11' adapted to prevent said upper member from rolling along the frame whenever the boss 12 and the said set screw et out of alignment a n #3 o 7 pair or intermediate members a, a lower member 2 engaging the same in a reversed position whereby it rides a spring 9 hung in aligni'nent with the said frame, means for forcing said frame and spring apart, and a clamp 4 adapted to prevent vibration in going over the road. p

13. A device of the character describec comprising an upper member 1 with its lower recess 0 riding a spring 9, a pair of threaded intermediate members 5, a lower j member 2 provided with an offset slidably engaging said intermediate members in a spring and llO reversed position said offset 19 adapted to form a support for a frame,and means for forcing the spring downward to its normal position in relation to the frame.

14L. A device of the character described comprising an upper member 1 a clamp cooperatingwith the same to fix a spring g in the lower recess 0 of said member, a pair of intermediate members 5, a lower member provided with an offset 19 engaging said intermediate members in a reversed direction so that the frame rides upon said OK- set, and means for forcing the upper member andspring downward.

15. A jack comprising an upper member 1, a-pair of intermediate members 5, a lower member 2 adapted to slidably engage said intermediate members in a reversed direction, said lower member being provided with an offset 19 adapted to support an automobile engine, a clamp 4, and means for fixing the members in adjusted position.

16. A device of the character described adapted to general jacking, clamping and supporting purposes comprising an upper member 1 recessed on both sides, and provided with a set screw 79 engaging the same by means of a threaded hole p, a pair of threaded intermediate members 5 with eyelets 16 integral therewith adaptedto rotatably engage bosses 12 integral with said upper member, means for perfecting said rotatable engagement, recessed lower member 2 slidably engaging said intermediate menr bers and provided with an offset 19 adapted to serve as a bracket when engaging said intermediate members in a, reversed direction,

a plurality of nuts 5 and a clamp'provided with a recess a and slots 17 and 18 adapted to engage said intermediate members, and means varying the distance between 'theupper and lower members at the will 'ofthe operator. v I

17. A jack comprising an upper member 1,

apair of threaded bolts 5, a' plurality of nuts, and a lower member 2 slidablyengagmg said bolts n'a reversed directlon, said lower member, being provided with an offset 19 adapted to support an automobile engine 0 and means for fixing said lower memjacking purposes.

20. A device of the character described comprising an upper member 1, a pair of threaded intermediate members 5, a lower member 2, and means for-eifectingthe cooperation of said members for positioning an automobile spring at the normal distance from a frame.

21. A device of the character described comprising an upper member recessed to receive a frame, means for fixing the same in firm engagement with said uppermember, a

pair of threaded bolts, a lower member slidably engaging said threaded bolts, said lower member being provided with a recess, and means for forcing the lower member to a predetermined point on said threaded bolts.

In testimony whereof I aflix my signature.

EMMONS B. KERR. 

